Examples

Box wrenches

Category: Friction welding machines
Application, field: Cutting / tool parts

Work tool parts
Material: Carbon steel

Alloy steel

SCM435×SS400
Bonding dimensions: φ20
Conventional technique: Integrated forging
Purpose: Improved quality

Reduced cost

Issues to be resolved

SS material integrated forged parts
- Forming of head portion with header
- Adoption of mass production difficult for forging
- Ratchet wear, deformation

Adoption merits

- Use of SCM material for head part by machining workpieces separately
- Common head portion, allowing adoption of mass production for cold forging
- Improved wear resistance (longer service life)